Re-enable GIT install in tools
#1792 Only J 2.5 Ban or unban user in backend
Merge pull request #1793 from xillibit/k30_bugs18

#1792 Only J 2.5 Ban or unban user in backend
Fix #1784: Kunena 3.0 still generates legacy URLs
Merge remote-tracking branch 'origin/master'
Merge branch 'master' of github.com:Kunena/Kunena-Forum
Merge pull request #1797 from mahagr/master

Fix #1784: Kunena 3.0 still generates legacy URLs
Add unlinking to git script
Improve language loading on system and quickicon plugins
Administration: Improve category access group listing
Merge pull request #1798 from mahagr/master

Improve git script, language loading on plugins and category access group listing
Fix #1799: Modules shouldn't change http status code
Merge branch 'master' of github.com:Kunena/Kunena-Forum
Fix #1787: Admin dashboard icons are the same
Fix #1732: Allow creation of new topic in/under section
Merge pull request #1800 from mahagr/master

Fix #1799, #1787, #1732
#1802

User Manager > tool tips: Enabled users will displayed as blocked and
vice versa
#1804 User manager: You cannot delete users
Merge pull request #1803 from 810/bugs1

#1802 User Manager > tool tips: Enabled users will displayed as blocked and
 #1804 User manager: You cannot delete users